Signaling device for incubators.



PATENTED. APR. 28, 1903.

AToRs.

r G. MGKB. SIGNALING DEVICE POR INGUB APPLICATION FILED DEO. 31,1907.

UNITED STAT-ns 'PATENT onirica.

To all w/im it may concern:

Be it known that I, GEORG MGKE, manufacturer, a subject ofthe Emperor of Austria-Hungary, and a resident of Reisenberg, Lower Austria, in the Empire of Austria- Hungary, have invented Improvements in Signaling Devicesfor Incubators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in signaling devices, and articularly to signaling devices used in incu ators, and has for an object the provision of means for indicating the condition'of the eggs in the incubator.

Another object -in vieW is the provision of a signalingdevice-for incubators arranged to sound an alarm when. the eggs in the incubator have reached a predetermined temperature either from an outside heating means or from the life contained therein.

A still further object in view is the provision of a signaling device adapted to sound an alarm when the eggs have reached a predetermined temperature, in combination with automatic means for regulating the heat for heatingthe incubator.

With these and otherf objects invvieW the invention comprises certain novel constructions, combinations, and arrangement of parts as will be hereinafter more fully described and claimed.

' bator maybe In the accompanying dra-Wings: Figure lis a vertical longitudinal section throng an incubator showing my invention ap lied thereto. Fig. 2 is a section through IFig. l, ap-

' proximately on line 2-2.

be reached by a suitable door of any construction, as seen in Fig. 2.

In order to provide proper heat for the incubator a lamp 4 of any desired kind may be used, preferably an ordinary oil lamp that GEORG MCKE, OF REISENBERi', AUSTRIA-HUNGARY.

SIGNALING DEVICE FOR INCUBATORS,

Specification of Letters Patent.-

Application filed December 31, 1907.

Patented April 28, 1908.

Serial No. 408,832.

has a chimney thereon, extending' into a pipe 5 that passes upward from lamp 4 to near the top of the incubator and then into and through the incubator and to the opposite endthereof Where it is formed into return passage Ways, as clearly seen in Fig. 2. The return passage Ways are designed to discharge into the atmosphere on the outside of the incubator. Passing upwardifrom tube 5 that is positioned above lamp 4 is an auxiliary tube 9 that is in free communication ,With tube 5 and directly in line with and above the chimney or lamp 4. This is to provide a draft or passage Way for the heat from lanip 4to be diverted from pipe 5 and return pipe positioned in the incubator. A cover or damper 8 is pivotally mounted upon the incubator and designed to rest against the top of tube 9 when it is desired that heat shall pass from lamp 4 to' pipe 5 and heat the incubator. The damper 8 extends over and has an armature secured thereto Which is designed to be operated by magnet 7 for opening damper 8 in order to divert the heat from pipe 5 to pipe 9 and from thence to the atmosphere. Magnet 7 is'connected to a suitable lsource of current and also to a thermometer 6 positioned in the incubator and arranged to have one of the connecting Wires continuously in contact with the lower part of the mercury and the other connecting wire so positioned as to be brought in contact with the mercury when the same has reached a predetermined level by reason of the rise of temperature in the incubator.V When the mercury 1n thermometer 6 has reachedl a predetermined level magnet 7 Will be energized and attract an armature positioned on damper 8 Which in turn Will cause the damper 8 to be moved off pipfe 9. This will prevent any further heating of the incubator as the -heat will pass out through pipe 9 into the atmosphere and avoid the tortueus passage through the incubator. Positioned within the incubator is a second thermometer secured to a supporting block, preferably of Wood, as and having an enlarged bulb at the'end bent over at 1.() at substantially rightangles to the remaining portion of the thermometer. The bent over' portion 1l) is designed to be of considerable length as seen in Fig. 2 so as to Contact with one or more of the eggs in order to cause the tl'iermoineter to act or indicate correctly the heat of thc eggs. A bracing member 14 is provided for holding block 15 in position as seen in Fig. l

IIO

Yheld by block 12 in such a manner as to be I receive heat, and the .must be heated by any ,desired heating 'heated and kill the life therein. In the sigsse,

for-permitting the enlarged portion l0 of the thermometer to rest iirmly against one 0r more eggs but not to sustain Athe entirefpressure of the block 15. Connected tothe thermometer positioned in block 15 are wires-11 which also are connected to a source of current 12 and to an alarm, as bell 13. One of the wires 1l is connected tothe thermometer continuously in contact with the mercury as to be only brought into contact with the` 1 mercury when the egg or eggs against which the same is resting has reached a predeter-4 mined temperature. By this construction and arrangement of thermometers an incubator heating means is provideda that will keep the incubator at any desired, temperature and in addition has an alarm or signaling device to indicate -when the eggs ave reached a predetermined temperature. t

In the incubation of eggs of oultry itis well known that the same is divided into two periods, the first being when the eggs are to second when the eggs give off heat. In the first instance the eggs means, and the second the-eggs are heated by the life therein, in addition to the auxiliary or outside heating means. Ordinarily the eggs in the iirst period, for instance about fourteen days, act in almost exactly the opposite way in which they act in the second period, or last eight days. In the last eight days, the' eggs generate heat by reason of the life contained therein and the natural heat will cause the eggs to become hotter than the atmosphere surrounding them. By reason of these facts it is always necessary to cool the eggs at approximately the proper time' so that the same may not become too highly naling device heretofore set forth means are provided for indicating the heat of the eggs, regardless of the temperature of the surrounding air, so that when the temperature oi the eggs exceeds the temperaturemf the l surrounding atmosphere an alarm will bei alarm the` samelis designed to lsaid oircui sounded to indicate such'fact. In using this sounding an alarm when the e g begins to generate heat iromffwithin so t at the heat from lam 4 may becut off or regulated so as to provi ele'ssheat for the incubator. In this way at the proper time the temperature 'i the incubator lowers so that the eggs may be in a proper environment or temperature A for properly hatching. therein, while the other wire is s'ol connected f YVhat I claim is:

1. In an alarm for incubators, a receptacle for receiving eggs, an electrically o erated alarm, acircuit for said alarm inclu ing a source of current, and meanscontacting withthe e gs in said receptacle for closing said means comprising a ther mometer having an indicating portion and a bulbibent at'right angles to said indicating portion' for forming a comparatively lar e `contact portion for'contacting with the said eggs,v saidcircuit being connected to different parts of said thermometer thereby upon the risefof the mercury in source of current to operate said alarm.

2. A signaling device for. incubatore, comprising a receptacle, for containing eggs, ,an alarm, a source of necting said source of current to said' alarm, anda thermostat connected yto said connecting means, said thermostat being formed with an indicating tion, said contact portion being designed to be in contact with operate for the .thermometer said .circuit will be closed for permitting said j p current, means for con-kl 8 0 portion and a Contact porthe eggs lnsaid receptacle for causing the thermostattofindicate the temperature thereof, the rise 'of the mercury predetermined i Vin said thermostat above a point belng designed to comp etethe circuit of said current forl operating said signal.

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses GEORG MCKE.

Witnesses:

FRANZ REITER, Roer. W. HEINGARTNER. 

